BEGGS

Oil · District 8A · Lease #69011

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

99k BBL

Cum Gas

0 MCF

Wells

1

Production

2006-09 — 2026-04

Peak Month

2007-02

Production History

Cum Oil: 98,834 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,161 BBL/mo

Di (annual)

15.3%

b-factor

0.1

EUR

100,595 BBL

R-squared

0.873

type

hyperbolic

Operator History (from monthly production reports)

2006-09 — 2026-07 SCHALK OIL COMPANY, INC. 239 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SCHALK OIL COMPANY, INC.14,4002006-08-07